/* ADMart 工程机械网站样式 - 参照 admart.kz 设计 */
:root {
    --admart-primary: #0052D4;
    --admart-secondary: #4364F7;
    --admart-accent: #6FB1FC;
    --admart-dark: #1a365d;
    --admart-light: #f0f4f8;
    --admart-orange: #f5a623;
    --admart-success: #38EF7D;
    --admart-text: #2d3748;
    --admart-text-light: #718096;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

body {
    font-family: 'Segoe UI', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--admart-text);
    line-height: 1.6;
    background: #fff;
}

/* 顶部联系栏 */
.top-contact-bar {
    background: var(--admart-dark);
    color: #fff;
    font-size: 14px;
}
.contact-items i {
    margin-right: 6px;
    color: var(--admart-accent);
}

/* 语言选择器 */
.language-selector {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
}
.lang-btn {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.7);
    padding: 4px 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 13px;
}
.lang-btn:hover, .lang-btn.active {
    color: #fff;
    font-weight: 600;
}
.lang-divider {
    color: rgba(255,255,255,0.3);
}

/* Logo 区域 */
.header-main {
    background: #fff;
    border-bottom: 1px solid #e2e8f0;
}
.brand-logo {
    color: var(--admart-primary);
}
.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--admart-primary), var(--admart-secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
}
.logo-bhtc {
    height: 50px;
    width: auto;
}
.brand-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--admart-dark);
    display: block;
    line-height: 1.2;
}
.brand-tagline {
    color: var(--admart-text-light);
    font-size: 12px;
}

/* 搜索框 */
.search-box {
    max-width: 500px;
    width: 100%;
}
.search-box .form-control {
    border: 2px solid #e2e8f0;
    border-right: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    padding: 10px 16px;
    font-size: 14px;
}
.search-box .form-control:focus {
    border-color: var(--admart-primary);
    box-shadow: none;
}
.btn-search {
    background: var(--admart-primary);
    color: #fff;
    border: 2px solid var(--admart-primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 10px 24px;
    font-weight: 600;
}
.btn-search:hover {
    background: var(--admart-dark);
    border-color: var(--admart-dark);
}

/* 按钮样式 */
.btn-admart {
    background: var(--admart-orange);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 28px;
    font-weight: 600;
    transition: all 0.3s;
}
.btn-admart:hover {
    background: #e09000;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn-outline-admart {
    border: 2px solid var(--admart-primary);
    color: var(--admart-primary);
    border-radius: var(--radius-sm);
    padding: 8px 20px;
    font-weight: 600;
    transition: all 0.3s;
}
.btn-outline-admart:hover {
    background: var(--admart-primary);
    color: #fff;
}

/* 主导航 */
.bg-admart {
    background: linear-gradient(135deg, var(--admart-primary), var(--admart-secondary));
}
.navbar-dark .navbar-nav .nav-link {
    color: rgba(255,255,255,0.9);
    padding: 12px 16px;
    font-weight: 500;
    transition: all 0.2s;
}
.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}
.navbar-dark .navbar-nav .nav-link i {
    margin-right: 6px;
}

/* 下拉菜单 */
.dropdown-menu {
    border: none;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    padding: 8px 0;
}
.dropdown-item {
    padding: 10px 20px;
    color: var(--admart-text);
    transition: all 0.2s;
}
.dropdown-item:hover {
    background: var(--admart-light);
    color: var(--admart-primary);
}

/* 轮播区域 */
.hero-section {
    position: relative;
}
.hero-slide {
    min-height: 450px;
    display: flex;
    align-items: center;
    color: white;
    padding: 60px 0;
}
.hero-slide h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.hero-slide p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
}
.carousel-control-prev,
.carousel-control-next {
    width: 5%;
    background: rgba(0,0,0,0.2);
    height: 60px;
    top: 50%;
    transform: translateY(-50%);
    border-radius: var(--radius-sm);
    margin: 0 20px;
}
.carousel-indicators {
    bottom: 30px;
}
.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin: 0 4px;
}

/* 服务优势 */
.advantages-section {
    background: #fff;
    padding: 40px 0;
    border-bottom: 1px solid #e2e8f0;
}
.advantage-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: var(--radius-md);
    transition: all 0.3s;
}
.advantage-item:hover {
    background: var(--admart-light);
}
.advantage-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--admart-primary), var(--admart-secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    flex-shrink: 0;
}
.advantage-text h4 {
    margin: 0 0 4px;
    font-size: 16px;
    font-weight: 600;
    color: var(--admart-dark);
}
.advantage-text p {
    margin: 0;
    font-size: 13px;
    color: var(--admart-text-light);
}

/* 区块标题 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}
.section-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--admart-dark);
}
.view-all {
    color: var(--admart-primary);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}
.view-all:hover {
    color: var(--admart-dark);
}

/* 分类卡片 */
.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--admart-text);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border: 1px solid #e2e8f0;
    height: 100%;
}
.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--admart-primary);
    color: var(--admart-primary);
}
.category-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--admart-light), #dbeafe);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 32px;
    color: var(--admart-primary);
    transition: all 0.3s;
}
.category-card:hover .category-icon {
    background: linear-gradient(135deg, var(--admart-primary), var(--admart-secondary));
    color: #fff;
}
.category-card h4 {
    margin: 0 0 8px;
    font-size: 15px;
    font-weight: 600;
}
.category-count {
    font-size: 13px;
    color: var(--admart-text-light);
}

/* 产品卡片 */
.product-card {
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    border: 1px solid #e2e8f0;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--admart-accent);
}
.product-card .card-img {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, #e2e8f0, #f7fafc);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.product-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.product-card:hover .card-img img {
    transform: scale(1.05);
}
.product-card .card-img i {
    font-size: 80px;
    color: #cbd5e0;
    transition: all 0.3s;
}
.product-card:hover .card-img i {
    transform: scale(1.1);
    color: var(--admart-accent);
}
.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--admart-orange);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.product-card .card-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-card .card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--admart-dark);
    margin-bottom: 8px;
    line-height: 1.4;
}
.product-card .card-text {
    color: var(--admart-text-light);
    font-size: 14px;
    margin-bottom: 12px;
    flex: 1;
}
.product-card .product-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--admart-primary);
    margin-bottom: 12px;
}
.product-card .product-price small {
    font-size: 14px;
    font-weight: 400;
    color: var(--admart-text-light);
}
.product-card .btn {
    background: var(--admart-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 20px;
    font-weight: 600;
    transition: all 0.2s;
}
.product-card .btn:hover {
    background: var(--admart-dark);
}

/* 为什么选择我们 */
.why-us-section {
    background: var(--admart-light);
}
.why-us-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    height: 100%;
}
.why-us-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.why-us-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--admart-primary);
    opacity: 0.15;
    margin-bottom: -20px;
}
.why-us-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--admart-dark);
    margin-bottom: 12px;
}
.why-us-card p {
    color: var(--admart-text-light);
    margin: 0;
}

/* 订购流程 */
.order-process {
    background: linear-gradient(135deg, var(--admart-primary), var(--admart-secondary));
    color: #fff;
}
.order-process h2 {
    color: #fff;
}
.process-step {
    text-align: center;
    padding: 20px;
}
.step-icon {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    transition: all 0.3s;
}
.process-step:hover .step-icon {
    background: rgba(255,255,255,0.25);
    transform: scale(1.1);
}
.process-step h4 {
    margin-bottom: 8px;
    font-weight: 600;
}
.process-step p {
    opacity: 0.85;
    margin: 0;
    font-size: 14px;
}

/* 页脚 */
.site-footer {
    background: var(--admart-dark);
    color: #fff;
}
.footer-top {
    padding: 60px 0 40px;
}
.footer-brand .brand-name {
    color: #fff;
}
.footer-brand p {
    color: rgba(255,255,255,0.7);
    margin: 0;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    transition: all 0.2s;
}
.footer-social a:hover {
    background: var(--admart-primary);
    transform: translateY(-3px);
}
.site-footer h5 {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}
.site-footer ul {
    margin: 0;
}
.site-footer ul li {
    margin-bottom: 10px;
}
.site-footer ul a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.2s;
}
.site-footer ul a:hover {
    color: var(--admart-accent);
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-contact i {
    color: var(--admart-accent);
    width: 20px;
}
.footer-bottom {
    background: rgba(0,0,0,0.2);
    padding: 20px 0;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}
.footer-lang .lang-btn {
    color: rgba(255,255,255,0.7);
}
.footer-lang .lang-btn:hover,
.footer-lang .lang-btn.active {
    color: #fff;
}

/* 产品列表页 */
.filter-section {
    background: #fff;
    padding: 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}
.filter-section .form-select {
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    padding: 10px 16px;
}
.filter-section .form-select:focus {
    border-color: var(--admart-primary);
    box-shadow: 0 0 0 3px rgba(0,82,212,0.1);
}
.search-filter {
    position: relative;
}
.search-filter .form-control {
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    padding: 10px 16px;
}
.search-filter .form-control:focus {
    border-color: var(--admart-primary);
    box-shadow: 0 0 0 3px rgba(0,82,212,0.1);
}
.search-filter .btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--admart-text-light);
}

/* 产品详情页 */
.product-detail-section {
    padding: 40px 0;
}
.gallery-section {
    position: sticky;
    top: 100px;
}
.gallery-main {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #e2e8f0, #f7fafc);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    overflow: hidden;
}
.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.gallery-main i {
    font-size: 150px;
    color: #cbd5e0;
}
.gallery-thumbs {
    display: flex;
    gap: 12px;
}
.gallery-thumb {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #e2e8f0, #f7fafc);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
}
.gallery-thumb:hover,
.gallery-thumb.active {
    border-color: var(--admart-primary);
}
.gallery-thumb i {
    font-size: 30px;
    color: #cbd5e0;
}
.product-info-card {
    background: #fff;
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}
.product-info-card h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--admart-dark);
    margin-bottom: 16px;
}
.product-detail-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--admart-primary);
    margin-bottom: 20px;
}
.specs-table {
    width: 100%;
    margin-bottom: 24px;
}
.specs-table tr {
    border-bottom: 1px solid #e2e8f0;
}
.specs-table td {
    padding: 12px 0;
}
.specs-table td:first-child {
    color: var(--admart-text-light);
    width: 40%;
}
.specs-table td:last-child {
    font-weight: 500;
    color: var(--admart-dark);
}
.product-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}
.product-actions .btn {
    flex: 1;
    padding: 14px 24px;
    font-weight: 600;
    border-radius: var(--radius-sm);
}
.btn-contact {
    background: var(--admart-primary);
    color: #fff;
    border: none;
}
.btn-contact:hover {
    background: var(--admart-dark);
    color: #fff;
}
.btn-quote {
    background: var(--admart-orange);
    color: #fff;
    border: none;
}
.btn-quote:hover {
    background: #e09000;
    color: #fff;
}

/* 联系页面 */
.contact-info-card {
    background: #fff;
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    height: 100%;
}
.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid #e2e8f0;
}
.contact-info-item:last-child {
    border-bottom: none;
}
.contact-info-item i {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--admart-primary), var(--admart-secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    flex-shrink: 0;
}
.contact-info-item h4 {
    margin: 0 0 4px;
    font-size: 16px;
    font-weight: 600;
    color: var(--admart-dark);
}
.contact-info-item p {
    margin: 0;
    color: var(--admart-text-light);
}
.contact-form {
    background: #fff;
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}
.contact-form h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--admart-dark);
    margin-bottom: 24px;
}
.contact-form .form-control,
.contact-form .form-select {
    border: 1px solid #e2e8f0;
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 16px;
}
.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: var(--admart-primary);
    box-shadow: 0 0 0 3px rgba(0,82,212,0.1);
}
.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}

/* 响应式 */
@media (max-width: 992px) {
    .search-box {
        max-width: 300px;
    }
    .header-actions {
        display: none;
    }
}
@media (max-width: 768px) {
    .top-contact-bar .contact-items span:not(:first-child) {
        display: none;
    }
    .hero-slide h1 {
        font-size: 1.8rem;
    }
    .hero-slide p {
        font-size: 1rem;
    }
    .advantage-item {
        padding: 12px;
    }
    .advantage-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
    .gallery-section {
        position: static;
        margin-bottom: 30px;
    }
}
@media (max-width: 576px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .process-step {
        padding: 16px;
    }
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in {
    animation: fadeIn 0.5s ease-out;
}